Search for the H dibaryon in (K-,K+) reaction with scintillating fiber active target

J. K. Ahn, S. Aoki, K. S. Chung, M. S. Chung, H. En'yo, T. Fukuda, H. Funahashi, Y. Goto, A. Higashi, M. Ieiri, T. Iijima, M. Iinuma, K. Imai, Y. Itow, J. M. Lee, S. Makino, A. Masaike, Y. Matsuda, Y. Matsuyama, S. MiharaC. Nagoshi, I. Nomura, I. S. Park, N. Saito, M. Sekimoto, Y. M. Shin, K. S. Sim, R. Susukita, R. Takashima, F. Takeutchi, P. Tlustý, S. Weibe, S. Yokkaichi, K. Yoshida, M. Yoshida, T. Yoshida, S. Yamashita

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)


We have studied (K-,K+) reactions at PK- = 1.66 GeV/c by using a newly developed active target made of plastic scintillating fibers. The H dibaryon (S = -2,I(Jπ) = 0(0+)) has been searched for through the direct process. K-+C→ K+ + H + X, by the analysis of the K+ momentum spectrum with the help of visual data of the scintillating fiber target. No evidence for the H production was observed. Upper limits for the differential cross section for the H production in the forward direction of the K+ is 0.04-0.6 μb/sr at the 90% confidence level for the H mass range from 1850 to 2215 MeV/c2.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-4
Publication statusPublished - 1996 Jun 20

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'Search for the H dibaryon in (K-,K+) reaction with scintillating fiber active target'. Together they form a unique fingerprint.

Cite this